| 5575682 | Apparatus for accessing the battery power of an electrical device | November, 1996 | Alexander | 439/500 |
This application claims foreign priority under 35 U.S.C. ยง 119 to Chinese Patent Application no. 200420077228.2, filed in the People's Republic of China on Aug. 4, 2004, the entire contents of which are hereby incorporated by reference.
1. Field of the Invention
The present invention relates to a wireless battery snap, particularly, one for use in an electrical device for connecting a battery.
2. Background of the Invention
A cylindrical shape rather than a rectangular shape battery is normally used in an electric device as the power supply. One of the reasons being that the electrical wires which protrude from the battery snap make it inconvenient for use. From a technical point of view, the electrical wires which protrude from the battery snap now available in the market may be twisted, stretched and disconnected during use which affect the conductivity of the battery snap. The cylindrical plug and the battery snap socket are exposed and may result in a short circuit causing damage to the electrical device and may result in injury to the user. Generally, a switch for controlling the power supply has to be added to the electrical device.
The Technical Problem to be Solved
To overcome the limitation of the types of battery that can be used in an existing battery snap, the inconvenience of using a battery snap with protruding electrical wires, exposing the cylindrical plug and battery snap socket which may result in a short circuit as well as the addition of a switch for controlling the power supply, the present invention is created without any protruding electrical wires, which can greatly improve the safety and expand the application of different battery types in use without the need of a switch to control the power supply.
The Technical Solution for Solving the Technical Problem
The wireless battery snap in the present invention comprises of an insulating support, two conductive eyelets, a cylindrical socket and a plug electrode, a conductive spring, a conductive contact plate, an insulating sheet and an insulating cover. In the insulating support there are at least two electrode holes in a formed-shape and a strip in a formed-shape protruding toward the other side and having a slotted base and side walls for securing the conductive contact plate, conductive spring, the eyelets and insulating cover. The cylindrical socket and plug electrodes extend through the two eyelets, conductive spring, and the contact plate to be fastened to the insulating support. The insulating sheet is located between the conductive spring and the other eyelet. The battery used is the type that the two cylindrical button electrodes are on the same plane.
Two button electrodes of the battery are disposed on the cylindrical socket and plug electrodes of the wireless battery snap with one of the cylindrical socket and plug electrodes connected to the contact plate by the conductive eyelets and the contact sheet secured to the flat contact surface formed in the protruded forming slotted base. Another cylindrical socket and plug electrode is connected to the conductive spring and contact plate by the conductive eyelets. The conductive spring or contact plate is disposed in the middle position of two forming electrode holes on the insulating support with the insulating cover fastened to the insulating support.
In use, it is necessary to provide a contact electrode with two independent poles with the two electrodes of the contact electrode connected to the other device. The conductive spring or contact plate of the wireless battery snap permanently contacts and depresses on one of the electrodes of the electrical device. When the electrode is displaced to compress the conductive spring or depresses the conductive contact plate, the other contact sheet of the wireless battery connects with the other electrodes of the electrical device causing the electrical device to be conducted by electrical current. When the contact electrode of the electrical device is displaced in the opposite direction, the conductive spring moves apart from the conductive contact plate and the contact plate of the other electrode of the wireless battery snap disconnects the other electrode on the plane preventing the electrical device from being conducted by current.
In the present invention, a set of batteries is used. The battery and the wireless battery snap must be connected together while the whole circuit is connected in series. The number of the batteries used is determined by the operating voltage required by the electrical device.
Turning on the battery of the present invention is achieved by the variation of the relative horizontal distance between the conductive spring and the contact plate. Two electrodes of the electrical device are secured in parallel on the same plane with one electrode permanently in contact with the conductive spring. When the electrode is displaced vertically to depress the conductive spring, the other electrode is proximate to the flat contact plate of the wireless battery snap resulting in turning on of the battery in the case of contact. Conversely, when the electrode is displaced vertically to release the conductive spring, the other electrode is moved apart from the flat contact plate of the wireless battery snap resulting in turning off of the power supply.
Two sets of cylindrical socket plugs are used. The cylindrical socket plugs are connected by means of a conductive contact plate or conductors. The whole circuit is connected serially or in parallel, and the amount of the cylindrical socket plugs of the battery is determined by the requirement of the electrical device.
The Effects of the Present Invention are as Follows:
A wireless battery snap is provided which eliminates the inconvenience of having protruding wires and is safer in use. Also, use of the conductive spring and contact plate eliminates the use of a switch that reduces the production cost. The conductive spring has the functions of preventing vibration and stabilizing the battery which eliminates the problem of turn-on and impact noise occurring in the case of swing or displacement of the electrical device due to the space in the ordinary battery compartment.
Another effect is to extend the kinds of batteries that can be used by users. Owing to the relatively great capacity of the battery, the life span of the electrical device and the power of the motor can be extended with a lowering in the costs of the battery.
FIG. 1 is a perspective view of a first embodiment of the invention;
FIG. 2 is the schematic view of the structure taken along the A-A line of FIG. 1;
FIG. 3 is a perspective view of a second embodiment of the invention;
FIG. 4 is the schematic view of the structure taken along B-B line of FIG. 2;
FIG. 5 is a perspective view of a third embodiment of the invention used with multiple batteries;
FIG. 6 is the schematic view of the contact electrodes of the electrical device used in the first embodiment of the invention;
FIG. 7 is the schematic view of the contact electrodes of the electrical device used in second embodiment of the invention;
Referring to FIGS. 1-5, the wireless battery snap of the present invention comprises an insulating support 1 , a conductive eyelet 2 , a cylindrical plug 3 and a socket electrode 4 , a conductive spring 5 or a conductive contact plate 50 , a contact plate 6 of other electrode, an insulating sheet 7 , an insulating cover 8 and a battery 9 .
In FIGS. 6 and 7, 1101 and 1102 denote the possible structure of the contact electrode of the electrical device.
FIGS. 1-6 show the first, second and third embodiments of the present invention. According to the structure of the invention, the wireless battery snap 10 , 100 and 1000 comprises of an insulating support 1 , a conductive eyelet 2 , a cylindrical plug 3 and a socket electrode 4 , a conductive spring 5 or a conductive contact plate 50 , a contact plate 6 of the other electrode, an insulating piece 7 , an insulating cover 8 and battery 9 .
The insulating support 1 is made of insulating materials by means of injection molding. At least two form electrode holes 11 and a formed strip protruding toward the other side having a slotted base 12 and side wall 17 for securing the conductive contact plate 6 , conductive spring 5 , or conductive contact plate 50 , the eyelet 2 and the insulating cover 8 are provided in the insulating support. The cylindrical plug 3 and the socket electrode 4 are extending through two conductive eyelets 2 , to connect to the conductive spring 5 or the contact plate 50 , then to be fastened to the insulating support 1 . The aforementioned points also apply to the schemes 10 , 100 or 1000 .
Two guided protrusions 13 are provided in the insulating support 1 . The circular wall 14 with one end opened and two guided posts 15 , the center lines of which are the same as the second formed electrode hole 11 are used for fastening the conductive spring 5 or conductive contact plate 50 and the hole 81 of the insulating cover 8 . The insulating sheet 7 is disposed in the gap between the conductive spring 5 and the conductive eyelet 2 of the other electrode.
An inner annular formed insulating wall 16 is provided in the electrode hole 11 on the other side of the insulating support 1 . The outer annular wall 17 in the outer perimeter of the insulating support 1 is used for receiving the insulating cover 8 . The battery 9 is the type that has the two cylindrical button electrodes disposed on the same plane.
Two button electrodes of the battery 9 which are made of conductive materials are disposed on the cylindrical plug 3 and socket electrode 4 of the wireless battery snap. The cylindrical plug electrode 3 extends out horizontally, inwardly 32 and outwardly 31 from the central cylindrical inner hole 33 at the base. A straight hole 34 is formed in the center of the base for extending through the conductive eyelet 2 and then secured. A central straight hole 41 is formed in the cylindrical socket electrode 4 for extending through the conductive eyelet 2 to fasten the insulating support 1 , the cylindrical socket electrode 4 and the conductive eyelet 2 together.
The cylindrical plug 3 is connected to the contact plate 6 by means of the conductive eyelet 2 , and the contact plate 6 is secured to the flat contact surface formed on the protruded slotted base. The other cylindrical socket plug electrode is connected to the conductive spring 5 or the conductive contact plate 50 by the conductive eyelet 2 . The spring is disposed in the middle position between two formed electrode holes provided in the insulating support. Finally, the insulating cover 8 is then fastened to the insulating support 1 .
In FIG. 5, the third embodiment of the invention is shown. In case more than one battery is used, a part of the cylindrical plugs 3 and the socket electrodes 4 in the insulating support 1 is connected serially or in parallel as required by the conductive contact plate or wiring 60 .
Referring to FIGS. 6 and 7, it is evident that the invention requires in use a set of contact electrodes 1101 and 1102 with two independent poles. Two poles 110 and 112 or 111 and 112 of the contact electrodes are connected to the other device, respectively. The contact spring 5 or the conductive contact plate 50 of the wireless battery snap permanently contacts and depresses on one electrode 110 or 111 of the electrical device. When the electrode is displaced to depress the conductive spring 5 or 111 , the other electrical contact plate 6 of the wireless battery snap is communicated with the other electrode 112 of the device causing the electrical device to be turned on by current.
When the contact electrode of the electrical device is displaced in the opposite direction the conductive spring 6 or 111 springs back, turning the electrode contact plate 6 of the wireless battery snap off and resulting in cutting off the current in the electrical device.